Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Punnett square

Punnett Squares (7th grade)

cross Represents the combining of male and female sex cells in Punnett squares. (When parents produce offspring.)
dominant Describes a gene that is always expressed because it masks the other gene; represented by a capital letter.
genotype The genetic code of an organism - represented by two letters.
heredity The passing of traits from one generation to the next by means of genes.
phenotype The physical appearance of an organism (based on its genotype).
Punnett square A genetic tool to solve genetics problems mathematically.
recessive Describes the gene that can be masked by a dominant gene; represented by a lower case letter. The recessive trait only appears when both genes are recessive.
trait A distinguishing characteristic based on your genes (such as eye color or hair color).
hybrid A genotype with 1 dominant and 1 recessive gene (like Tt or Bb)
purebred A genotype with 2 dominant or 2 recessive genes (like BB or bb or HH or hh) also known as HOMOZYGOUS
probability The chance or likelihood of something occurring.
Homozygous Genotype with 2 dominant or 2 recessive genes for a trait: like TT or bb
heterozygous genotype with one dominant and one recessive gene for a trait: like Tt, Bb or Rr.-also known as hybrid
Created by: Mrs. Corey